CN201552667U - Double-horizontal-shaft single ribbon concrete mixer - Google Patents
Double-horizontal-shaft single ribbon concrete mixer Download PDFInfo
- Publication number
- CN201552667U CN201552667U CN2009203129574U CN200920312957U CN201552667U CN 201552667 U CN201552667 U CN 201552667U CN 2009203129574 U CN2009203129574 U CN 2009203129574U CN 200920312957 U CN200920312957 U CN 200920312957U CN 201552667 U CN201552667 U CN 201552667U
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- blade unit
- feeding
- shovel
- ribbon
- shaft
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- 239000004567 concrete Substances 0.000 title claims abstract description 46
- 238000003756 stirring Methods 0.000 claims description 63
- 230000009977 dual effect Effects 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 38
- 239000004574 high-performance concrete Substances 0.000 abstract description 5
- 239000011372 high-strength concrete Substances 0.000 abstract description 5
- 238000007790 scraping Methods 0.000 abstract 2
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000010008 shearing Methods 0.000 abstract 1
- 238000013019 agitation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011440 grout Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Mixers Of The Rotary Stirring Type (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Accessories For Mixers (AREA)
Abstract
The utility model discloses a double-horizontal-shaft single ribbon concrete mixer which comprises two parallel mixing shafts arranged in the mixer body horizontally, wherein one end of each mixing shaft is provided with a feeding continuous ribbon blade unit, a feeding side-scraping blade unit and a feeding single-shovel blade unit, the middle part of each mixing shaft is provided with a feeding single ribbon blade unit, and the other end thereof is provided with a return continuous ribbon blade unit, a return single-shovel blade unit and a return side-scraping blade unit. The blade units on the two mixing shafts are arranged along the axial direction and in the same sequence and opposite direction. The continuous cycle flow velocity of material inside the mixer along axial and radial directions is improved through a three-dimensional boiling-type intense mixing employing continuous spiral extrusion and radial shearing, and the efficient and rapid mixing of material in the mixer are also realized. The double-horizontal-shaft single ribbon concrete mixer realizes the efficient and rapid mixing of common material, especially high strength and high performance concrete in the mixer and avoids material from accumulating on the mixing shafts.
Description
Technical field
The utility model relates to a kind of concrete mixer, particularly relates to a kind of dual horizontal axle list helical ribbon concrete mixer.
Background technology
Existing double-horizontal axle concrete-mixer, its structure comprises: stir body, be horizontally set on and stir the two-parallel axis in the body and be arranged on that side on the shaft is scraped, feeding, return the unit, each unit includes the stirring vane that is installed in the mixing arm on the shaft and is connected the mixing arm end.Because each unit is a discrete, the stirring of material in the mixer is shoveled moving realization separately by individual blade, material can not produce integral body and circulate continuously.A kind of dual horizontal shaft double-helical ribbon concrete mixer is arranged at present, as JP2003126668, CN20042003922, the ribbon of inner ring is assisted stirring to the inner ring material, but cause solid accumulation easily on shaft, reduced stirring efficiency, also can cause damage shaft.Adopt existing double-horizontal axle concrete-mixer, the mixing time of normal concrete is 45 seconds, and productivity ratio is 50 batches/hour, and the mixing time of strong concrete is 120 seconds, and productivity ratio is 24 batches/hour, and speed, the effect of stirring all have much room for improvement.
The utility model content
Technical problem to be solved in the utility model provide a kind of to material in the mixer efficient, stir fast, realize to normal concrete especially high strength and high performance concrete stir efficiently, fast and material can not be deposited in the dual horizontal axle list helical ribbon concrete mixer of shaft.
In order to solve the problems of the technologies described above, the dual horizontal axle list helical ribbon concrete mixer that the utility model adopts, comprise the stirring body, and be horizontally set on two parallel shafts that stir in the body, end at every described shaft is provided with the continuous ribbon blade unit of feeding, the feeding side is scraped blade unit, the single shovel of first feeding blade unit, the single shovel of second feeding blade unit, the single shovel of the 3rd feeding blade unit, the single shovel of the 4th feeding blade unit, the single shovel of described first feeding blade unit, the single shovel of second feeding blade unit, the 3rd feeding single shovel blade unit and the single shovel of the 4th feeding blade unit composition are interrupted the ribbon blade unit with the feeding that the continuous ribbon blade unit of described feeding is in the axial both sides of described shaft, described shaft mid portion is provided with single ribbon blade unit of feeding and the single shovel of feeding blade unit, the described shaft other end is provided with and returns continuous ribbon blade unit, return single shovel blade unit and return side and scrape blade unit, the described unit that has on described two parallel shafts with same sequence vertically rightabout arrange.
The continuous ribbon blade unit of described feeding comprises and is installed on the described shaft and five first mixing arms arranging of shape in the shape of a spiral, all be connected with first stirring vane in each described first mixing arm end, five described first stirring vanes connect into continuously arranged spiral blade group.
Described feeding side is scraped the single first shovel sheet side that blade unit comprises single second mixing arm that is installed on the described shaft and be connected the described second mixing arm end and is scraped blade.
The single shovel of described first feeding blade unit, the single shovel of second feeding blade unit, the single shovel of the 3rd feeding blade unit, the 4th feeding single shovel blade unit and the single shovel of feeding blade unit include the single first shovel sheet blade that is installed in single the 3rd mixing arm on the described shaft and is connected described the 3rd mixing arm end.
The single ribbon blade unit of described feeding comprises single the 4th mixing arm that is installed on the described shaft and is connected the single helical ribbon blade of described the 4th mixing arm end.
The described list shovel blade unit that returns comprises single the 5th mixing arm that is installed on the described shaft and the single second shovel sheet blade that is connected described the 5th mixing arm end.
Describedly return two the 6th mixing arms that continuous ribbon blade unit comprises that the shape in the shape of a spiral that is installed on the described shaft is arranged, all be connected with second stirring vane in each described the 6th mixing arm end, described second stirring vane connects into continuously arranged spiral blade group.
The described side of returning is scraped the single second shovel sheet side that blade unit comprises single the 7th mixing arm that is installed on the described shaft and be connected described the 7th mixing arm end and is scraped blade.
Adopt the dual horizontal axle list helical ribbon concrete mixer of technique scheme, adopt feeding, return continuous ribbon blade unit, feeding, return single shovel sheet agitating unit, the single ribbon blade unit of feeding, returns side and scrapes agitating unit feeding.Wherein feeding, return continuous ribbon blade unit and play main stirring action; Feeding, return single shovel sheet agitating unit and play auxiliary stirring action; Feeding, return side and scrape agitating unit mixer sidewall concrete is scraped in the middle of mixer, avoid concrete to amass, avoid concrete grout to corrode simultaneously and stir axle head at sidewall.Its stirring theory is as follows: the continuous ribbon blade unit of feeding stirs material to stirring the continuous helical extruding of body middle part, the single shovel of feeding blade unit stirs in inside material to stirring the auxiliary extruding in body middle part, the feeding side is scraped blade unit mixer sidewall concrete is scraped in the middle of mixer.When Flow of Goods and Materials was in the middle part of shaft, the single ribbon blade unit of feeding slowed down the flowing velocity of material, and concentrates stirring at the middle part of shaft.Return continuous ribbon blade unit material is oppositely stirred the continuous helical extruding stirring of body middle part along axle, returning single shovel blade unit assists extruding to stir in the middle part of edge, inside axle oppositely stirs body material, return side and scrape blade unit mixer sidewall concrete is scraped along axle oppositely in the middle of the mixer, form and circulate continuously.The feeding of being made up of the single shovel of first feeding blade unit, the single shovel of second feeding blade unit, the 3rd feeding single shovel blade unit and the single shovel of the 4th feeding blade unit is interrupted the ribbon blade unit; the inner ring material is assisted stirring; be interrupted the single shovel of the feeding blade unit that is provided with and can not cause solid accumulation on shaft, effectively protected shaft.Because each agitating unit of two shafts rightabout is vertically arranged, make the material that stirs in the body form two bursts of recycle stream that integral body is continuous, simultaneously radially be subjected to the continuous strong shear agitation at the middle part of two shafts material, realization is to the three-dimensional boiling type high degree of agitation of axial continuous helical extruding of material and radial shear, realized the efficient, quick of material in the mixer stirred, realized efficient, stirring fast normal concrete especially high strength and high performance concrete.Adopt dual horizontal axle list helical ribbon concrete mixer, the mixing time of normal concrete is 20 seconds, and productivity ratio is 80 batches/hour, improves 60% than existing twin-shaft mixer productivity ratio; The mixing time of strong concrete is 40 seconds, and productivity ratio is 40 batches/hour, improves 66% than existing twin-shaft mixer productivity ratio.
In sum, the utility model be a kind of to material in the mixer efficient, stir fast, realize to normal concrete especially high strength and high performance concrete stir efficiently, fast and material can not be deposited in the dual horizontal axle list helical ribbon concrete mixer of shaft.
Description of drawings
Fig. 1 is the schematic diagram of dual horizontal axle list helical ribbon concrete mixer;
Fig. 2 is the schematic diagram of dual horizontal axle list helical ribbon concrete mixer internal structure;
Fig. 3 is the schematic diagram of the agitating device of dual horizontal axle list helical ribbon concrete mixer.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
With reference to Fig. 1, dual horizontal axle list helical ribbon concrete mixer, comprise and stir body 3, its course of work is as follows: material adds mixer inside from the mixer top, motor 4 drives the agitating device 1 that stirs in the body by the transmission mechanism of being made up of belt pulley, right angle shaft type reductor 5 and rotates, material is stirred, stir finish after, open and stir body bottom discharge door 2 material is drawn off.
With reference to Fig. 2, Fig. 3, stir in the body 3 and be horizontally disposed with the two first parallel shafts 11 and second shaft 12, end at every shaft is provided with the continuous ribbon blade unit 14 of feeding, the feeding side is scraped blade unit 13, the single shovel of first feeding blade unit 153, the single shovel of second feeding blade unit 154, the single shovel of the 3rd feeding blade unit 155, the single shovel of the 4th feeding blade unit 156, the single shovel of first feeding blade unit 153, the single shovel of second feeding blade unit 154, the 3rd feeding single shovel blade unit 155 and the single shovel of the 4th feeding blade unit 156 compositions are interrupted the ribbon blade unit with the feeding that the continuous ribbon blade unit 14 of feeding is in the axial both sides of shaft, the shaft mid portion is provided with single ribbon blade unit 16 of feeding and the single shovel of feeding blade unit 15, the shaft other end is provided with and returns continuous ribbon blade unit 17, return single shovel blade unit 18 and return side scrape the unit that has on blade unit 19, the first shafts 11 and second shaft 12 with same sequence vertically rightabout arrange.
The continuous ribbon blade unit 14 of feeding comprises and is installed on the shaft and five first mixing arms 141 arranging of shape in the shape of a spiral, all be connected with 142, five first stirring vanes 142 of first stirring vane in each first mixing arm, 141 end and connect into continuously arranged spiral blade group.
The feeding side is scraped blade unit 13 and is comprised that the single first shovel sheet side that is installed in single second mixing arm 131 on the shaft and is connected second mixing arm, 131 ends scrapes blade 132.
The single shovel of first feeding blade unit 153, the single shovel of second feeding blade unit 154, the single shovel of the 3rd feeding blade unit 155, the 4th feeding single shovel blade unit 156 and the single shovel of feeding blade unit 15 include the single first shovel sheet blade 152 that is installed in single the 3rd mixing arm 151 on the shaft and is connected the 3rd mixing arm 151 ends.
The single ribbon blade unit 16 of feeding comprises the single helical ribbon blade 162 that is installed in single the 4th mixing arm 161 on the shaft and is connected the 4th mixing arm 161 ends.
Return single shovel blade unit 18 and comprise the single second shovel sheet blade 182 that is installed in single the 5th mixing arm 181 on the shaft and is connected the 5th mixing arm 181 ends.
Return two the 6th mixing arms 171 that continuous ribbon blade unit 17 comprises the arrangement of shape in the shape of a spiral that is installed on the shaft, all be connected with second stirring vane, 172, the second stirring vanes 172 in each the 6th mixing arm 171 end and connect into continuously arranged spiral blade group.
Returning side scrapes blade unit 19 and comprises that the single second shovel sheet side that is installed in single the 7th mixing arm 191 on the shaft and is connected the 7th mixing arm 191 ends scrapes blade 192.
Referring to Fig. 2 and Fig. 3, dual horizontal axle list helical ribbon concrete mixer adopts the continuous ribbon blade unit 14 of feeding, returns continuous ribbon blade unit 17, the single shovel of feeding blade unit 15, the single shovel of first feeding blade unit 153, the single shovel of second feeding blade unit 154, the single shovel of the 3rd feeding blade unit 155, the single shovel of the 4th feeding blade unit 156, return single shovel blade unit 18, the single ribbon blade unit 16 of feeding, feeding side scrape blade unit 13, return side scrapes blade unit 19.Wherein the continuous ribbon blade unit 14 of feeding, return continuous ribbon blade unit 17 and play main stirring action; The single shovel of feeding blade unit 15, the single shovel of first feeding blade unit 153, the single shovel of second feeding blade unit 154, the single shovel of the 3rd feeding blade unit 155, the single shovel of the 4th feeding blade unit 156, return single shovel blade unit 18 and play auxiliary stirring action; The feeding side scrapes blade unit 13, return side scrapes blade unit 19 mixer sidewall concrete is scraped in the middle of mixer, avoids concrete to amass at sidewall, avoids concrete grout to corrode simultaneously and stirs axle head.Its stirring theory is as follows: the continuous ribbon blade unit 14 of feeding stirs material to stirring the continuous helical extruding of body middle part, the single shovel of feeding blade unit 15, the single shovel of first feeding blade unit 153, the single shovel of second feeding blade unit 154, the single shovel of the 3rd feeding blade unit 155, the single shovel of the 4th feeding blade unit 156 stir in inside material to stirring the auxiliary extruding in body middle part, the feeding side is scraped blade unit 13 mixer sidewall concrete is scraped in the middle of mixer.When Flow of Goods and Materials was in the middle part of shaft, the single ribbon blade unit 16 of feeding slowed down the flowing velocity of material, and concentrates stirring at the middle part of shaft.Return continuous ribbon blade unit 17 material is oppositely stirred body 3 middle part continuous helical extruding stirrings along axle, returning single blade unit 18 that shovels oppositely assists extruding to stir in stirring body 3 middle parts in inside along axle material, return side and scrape blade unit 19 mixer sidewall concrete is scraped along axle oppositely in the middle of the mixer, form and circulate continuously.Because each agitating unit of two shafts rightabout is vertically arranged, make the material that stirs in the body form two bursts of recycle stream that integral body is continuous, simultaneously radially be subjected to the continuous strong shear agitation at the middle part of two shafts material, realization is to the three-dimensional boiling type high degree of agitation of axial continuous helical extruding of material and radial shear, realized the efficient, quick of material in the mixer stirred, realized efficient, stirring fast normal concrete especially high strength and high performance concrete.By the single shovel of first feeding blade unit 153; the single shovel of second feeding blade unit 154; the single shovel of the 3rd feeding blade unit 155; the feeding that the single shovel of the 4th feeding blade unit 156 is formed is interrupted the ribbon blade unit; the inner ring material is assisted stirring; some shovels blade unit 153 from first feeding list material of inner ring; the single shovel of second feeding blade unit 154; the single shovel of the 3rd feeding blade unit 155; discontinuities between the single shovel of the 4th feeding blade unit 156 flows through; can not cause material all to be deposited on the shaft; effectively protect shaft service life, improved stirring efficiency and effect.Adopt dual horizontal axle list helical ribbon concrete mixer, the mixing time of normal concrete is 20 seconds, and productivity ratio is 80 batches/hour, improves 60% than existing twin-shaft mixer productivity ratio; The mixing time of strong concrete is 40 seconds, and productivity ratio is 40 batches/hour, improves 66% than existing twin-shaft mixer productivity ratio.
Claims (8)
1. dual horizontal axle list helical ribbon concrete mixer, comprise and stir body (3), and be horizontally set on two parallel shafts (11 that stir in the body, 12), it is characterized in that: at every described shaft (11,12) a end is provided with the continuous ribbon blade unit of feeding (14), the feeding side is scraped blade unit (13), the single shovel of first feeding blade unit (153), the single shovel of second feeding blade unit (154), the single shovel of the 3rd feeding blade unit (155), the single shovel of the 4th feeding blade unit (156), the single shovel of described first feeding blade unit (153), the single shovel of second feeding blade unit (154), the 3rd feeding single shovel blade unit (155) and the 4th feeding single shovel blade unit (156) composition are in described shaft (11 with the continuous ribbon blade unit of described feeding (14), 12) axially the feeding on both sides is interrupted the ribbon blade unit, described shaft (11,12) mid portion is provided with single ribbon blade unit (16) of feeding and the single shovel of feeding blade unit (15), described shaft (11,12) other end is provided with and returns continuous ribbon blade unit (17), return single shovel blade unit (18) and return side and scrape blade unit (19), described two parallel shafts (11,12) the described unit that has on same sequence vertically rightabout arrange.
2. dual horizontal axle list helical ribbon concrete mixer according to claim 1, it is characterized in that: the continuous ribbon blade unit of described feeding (14) comprises and is installed in that described shaft (11,12) is gone up and five first mixing arms (141) arranged of shape in the shape of a spiral, all be connected with first stirring vane (142) in each described first mixing arm (141) end, five described first stirring vanes (142) connect into continuously arranged spiral blade group.
3. dual horizontal axle list helical ribbon concrete mixer according to claim 1 is characterized in that: described feeding side is scraped blade unit (13) and is comprised that the single first shovel sheet side that is installed in single second mixing arm (131) on the described shaft (11,12) and is connected described second mixing arm (131) end scrapes blade (132).
4. dual horizontal axle list helical ribbon concrete mixer according to claim 1 is characterized in that: the single shovel of described first feeding blade unit (153), the single shovel of second feeding blade unit (154), the single shovel of the 3rd feeding blade unit (155), the 4th feeding single shovel blade unit (156) and feeding single shovel blade unit (15) include the single first shovel sheet blade (152) that is installed in single the 3rd mixing arm (151) on the described shaft (11,12) and is connected described the 3rd mixing arm (151) end.
5. dual horizontal axle list helical ribbon concrete mixer according to claim 1 is characterized in that: the single ribbon blade unit of described feeding (16) comprises the single helical ribbon blade (162) that is installed in single the 4th mixing arm (161) on the described shaft (11,12) and is connected described the 4th mixing arm (161) end.
6. dual horizontal axle list helical ribbon concrete mixer according to claim 1 is characterized in that: the described single shovel blade unit (18) that returns comprises the single second shovel sheet blade (182) that is installed in single the 5th mixing arm (181) on the described shaft (11,12) and is connected described the 5th mixing arm (181) end.
7. dual horizontal axle list helical ribbon concrete mixer according to claim 1, it is characterized in that: describedly return two the 6th mixing arms (171) that continuous ribbon blade unit (17) comprises that the shape in the shape of a spiral that is installed on the described shaft (11,12) is arranged, all be connected with second stirring vane (172) in each described the 6th mixing arm (171) end, described second stirring vane (172) connects into continuously arranged spiral blade group.
8. dual horizontal axle list helical ribbon concrete mixer according to claim 1 is characterized in that: the described side of returning is scraped blade unit (19) and is comprised that the single second shovel sheet side that is installed in single the 7th mixing arm (191) on the described shaft (11,12) and is connected described the 7th mixing arm (191) end scrapes blade (192).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203129574U CN201552667U (en) | 2009-10-21 | 2009-10-21 | Double-horizontal-shaft single ribbon concrete mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203129574U CN201552667U (en) | 2009-10-21 | 2009-10-21 | Double-horizontal-shaft single ribbon concrete mixer |
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| Publication Number | Publication Date |
|---|---|
| CN201552667U true CN201552667U (en) | 2010-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203129574U Expired - Lifetime CN201552667U (en) | 2009-10-21 | 2009-10-21 | Double-horizontal-shaft single ribbon concrete mixer |
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| CN (1) | CN201552667U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555056A (en) * | 2011-11-17 | 2012-07-11 | 潍坊市贝特工程机械有限公司 | Forced continuous composite mixer |
| CN102825661A (en) * | 2012-09-01 | 2012-12-19 | 谢俊德 | Double-horizontal-spindle concrete mixing and conveying apparatus |
| CN103128854A (en) * | 2013-02-01 | 2013-06-05 | 福建南方路面机械有限公司 | Continuous double-horizontal-shaft forced mixer for asphalt and concrete |
| EP2428341A3 (en) * | 2010-09-09 | 2014-04-16 | Elematic Oy Ab | Mixer axis for dual axis concrete mixer, and dual axis concrete mixer |
| CN103847026A (en) * | 2014-03-26 | 2014-06-11 | 山推建友机械股份有限公司 | Concrete mixing main engine |
| CN103895101A (en) * | 2014-03-26 | 2014-07-02 | 山推建友机械股份有限公司 | Agitating device of concrete agitating main machine |
| CN104589506A (en) * | 2015-01-09 | 2015-05-06 | 广西大学 | Nonlinear multi-frequency vibration concrete mixer |
| CN105328787A (en) * | 2014-08-07 | 2016-02-17 | 中联重科股份有限公司 | Spiral belt keel, spiral belt and stirring device |
-
2009
- 2009-10-21 CN CN2009203129574U patent/CN201552667U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2428341A3 (en) * | 2010-09-09 | 2014-04-16 | Elematic Oy Ab | Mixer axis for dual axis concrete mixer, and dual axis concrete mixer |
| CN102555056A (en) * | 2011-11-17 | 2012-07-11 | 潍坊市贝特工程机械有限公司 | Forced continuous composite mixer |
| CN102555056B (en) * | 2011-11-17 | 2014-04-23 | 潍坊市贝特工程机械有限公司 | Forced continuous composite mixer |
| CN102825661A (en) * | 2012-09-01 | 2012-12-19 | 谢俊德 | Double-horizontal-spindle concrete mixing and conveying apparatus |
| CN102825661B (en) * | 2012-09-01 | 2015-05-13 | 山东圆友重工科技有限公司 | Double-horizontal-spindle concrete mixing and conveying apparatus |
| CN103128854A (en) * | 2013-02-01 | 2013-06-05 | 福建南方路面机械有限公司 | Continuous double-horizontal-shaft forced mixer for asphalt and concrete |
| CN103128854B (en) * | 2013-02-01 | 2016-05-11 | 福建南方路面机械有限公司 | Bituminous concrete continous way Double-horizontal-shaft forced stirrer |
| CN103847026A (en) * | 2014-03-26 | 2014-06-11 | 山推建友机械股份有限公司 | Concrete mixing main engine |
| CN103895101A (en) * | 2014-03-26 | 2014-07-02 | 山推建友机械股份有限公司 | Agitating device of concrete agitating main machine |
| CN105328787A (en) * | 2014-08-07 | 2016-02-17 | 中联重科股份有限公司 | Spiral belt keel, spiral belt and stirring device |
| CN104589506A (en) * | 2015-01-09 | 2015-05-06 | 广西大学 | Nonlinear multi-frequency vibration concrete mixer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CHANGSHA ZOOMLION HEAVY INDUSTRY SCIENCE + TECHNOL Free format text: FORMER NAME: CHANG SHA ZOOMLION HEAVY INDUSTRY SCIENCE + TECHNOLOGY DEVELOPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Yuelu District City, Hunan province 410205 Changsha Lugu Road No. 677 ZOOMLION Lugu Industry Park concrete branch Patentee after: ZOOMLION HEAVY INDUSTRY SCIENCE&TECHNOLOGY Co.,Ltd. Address before: Yuelu District City, Hunan province 410205 Changsha Lugu Road No. 677 ZOOMLION Lugu Industry Park concrete branch Patentee before: CHANGSHA ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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| CX01 | Expiry of patent term |
Granted publication date: 20100818 |
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| CX01 | Expiry of patent term |